import time
from selenium import webdriver
from selenium.webdriver.common.by import By

driver = webdriver.Chrome(executable_path='chromedriver.exe')

driver.get("http://121.43.169.97:8848/pageA.html")

driver.find_element(By.TAG_NAME,"input").send_keys("admin")

# # 暂停3秒
time.sleep(3)
# # 4.关闭/退出浏览器
# # 关闭驱动对象
driver.quit()